Application: gvSIG desktop

/*

 * Created on 23-jun-2006

 *

 * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

 *

 * $Id: GeoprocessManager.java 8745 2006-11-14 13:14:23Z  $

 * $Log$

 * Revision 1.8.2.1  2006-09-15 15:08:30  azabala

 * a bug in JSplitPane makes it ignore setDividerLocation calls. fixed it with a tricky workaround

 *

 * Revision 1.8  2006/08/29 07:56:30  cesar

 * Rename the *View* family of classes to *Window* (ie: SingletonView to SingletonWindow, ViewInfo to WindowInfo, etc)

 *

 * Revision 1.7  2006/08/29 07:13:56  cesar

 * Rename class com.iver.andami.ui.mdiManager.View to com.iver.andami.ui.mdiManager.IWindow

 *

 * Revision 1.6  2006/08/11 16:30:38  azabala

 * *** empty log message ***

 *

 * Revision 1.5  2006/07/21 09:32:01  azabala

 * fixed bug 644: disabling ok button untill user select a geoprocess

 *

 * Revision 1.4  2006/07/04 16:42:37  azabala

 * *** empty log message ***

 *

 * Revision 1.3  2006/06/27 16:16:49  azabala

 * imports organization

 *

 * Revision 1.2  2006/06/27 16:15:08  azabala

 * solved bug of packages replication (when added multiple geoprocesses to them)

 *

 * Revision 1.1  2006/06/23 19:03:52  azabala

 * first version in cvs

 *

 *

 */

package com.iver.cit.gvsig.geoprocess.manager;

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.awt.event.ComponentAdapter;

import java.awt.event.ComponentEvent;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.io.IOException;

import java.util.TreeMap;

import javax.swing.JButton;

import javax.swing.JEditorPane;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JSeparator;

import javax.swing.JSplitPane;

import javax.swing.JTree;

import javax.swing.event.TreeSelectionEvent;

import javax.swing.event.TreeSelectionListener;

import javax.swing.text.html.HTMLEditorKit;

import javax.swing.tree.DefaultMutableTreeNode;

import javax.swing.tree.TreePath;

import com.iver.andami.PluginServices;

import com.iver.andami.ui.mdiManager.IWindow;

import com.iver.andami.ui.mdiManager.WindowInfo;

import com.iver.cit.gvsig.geoprocess.core.IGeoprocessController;

import com.iver.cit.gvsig.geoprocess.core.IGeoprocessPlugin;

import com.iver.cit.gvsig.geoprocess.core.gui.GeoprocessPaneContainer;

import com.iver.cit.gvsig.geoprocess.core.gui.IGeoprocessPanel;

import com.iver.cit.gvsig.geoprocess.manager.GeoprocessTree.GeoprocessTreeDirectory;

/**

 * Main panel of the Geoprocess Manager gui component.

 * 

 * It has a tree where shows all geoprocesses structure, and

 * buttons to open geoprocess' panel, and to close itself.

 * 

 * It also listens for tree selection events.

 * 

 * @author azabala

 *

 */

public class GeoprocessManager extends JPanel 

        implements IWindow, TreeSelectionListener {

        /**

         * Central panel wich has the geoprocess tree on left and

         * the description panel on right

         */

        JSplitPane jSplitPaneCenter;

        /**

         * Tree wich shows all registered geoprocesses

         */

        private GeoprocessTree tree;

        /**

         * It wraps htmlPane

         */

        private JScrollPane scrollHtml;

        /**

         * Panel wich shows description of selected packages or 

         * geoprocesess

         */

        private JEditorPane htmlPane;

        /**

         * It has the button "open geoprocess" and "close view"

         */

        private JPanel jPanelButtons;

        /**

         * Button to close the andami view

         */

        private JButton jButtonClose;

        /**

         * Button to open the selected geoprocess panel

         */

        private JButton openGeoprocess;

        /**

         * ViewInfo of andami

         */

        private WindowInfo viewInfo;

        /**

         * It has all package descriptions 

         * (new plugins must register package descriptions

         * here)

         */

        private static TreeMap packageDescriptions =

                new TreeMap();

        public static void registerPackageDescription(String pkgName,

                        String description){

                packageDescriptions.put(pkgName, description);

        }

        public static String getDescriptionFor(String pkgName){

                return (String) packageDescriptions.get(pkgName);

        }

        /**

         * This is the default constructor

         */

        public GeoprocessManager() {

                super();

                initialize();

        }

        public WindowInfo getWindowInfo() {

                if (viewInfo == null) {

                        viewInfo = new WindowInfo(WindowInfo.MODELESSDIALOG | 

                                                                                WindowInfo.RESIZABLE | 

                                                                                WindowInfo.PALETTE);

                        viewInfo.setTitle(PluginServices.

                                        getText(this, "Gestor_de_Geoprocesos"));

                        viewInfo.setWidth(700);

                        viewInfo.setHeight(465);

                }

                return viewInfo;

        }

        /**

         * This method initializes this

         * 

         * @return void

         */

        private void initialize() {

                this.setLayout(new BorderLayout());

                add(getJSplitPaneCenter(), BorderLayout.CENTER);

                getJSplitPaneCenter().setLeftComponent(getGeoprocessTree());

                getJSplitPaneCenter().setRightComponent(getHtmlPane());

                add(getJPanelButtons(), BorderLayout.SOUTH);

                this.setSize(700, 525);

                /*

                 * see http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4182558

                 * JSplitPane doesnt care setDividerLocation calls before

                 * its container would be visible

                 * 

                 * */

                getJSplitPaneCenter().addComponentListener( new ComponentAdapter() {

                          public void componentResized( ComponentEvent event ) {

                                  getJSplitPaneCenter().setDividerLocation(0.35);

                                  getJSplitPaneCenter().removeComponentListener( this );

                          }

                        } );

        }

        private JSplitPane getJSplitPaneCenter() {

                if (jSplitPaneCenter == null) {

                        jSplitPaneCenter = new JSplitPane();

                }

                return jSplitPaneCenter;

        }

        private GeoprocessTree getGeoprocessTree() {

                if(tree == null){

                        tree = new GeoprocessTree();

                        tree.addTreeSelectionListener(this);

                        tree.addMouseListener(new GeopTreeMouseListener());

                }

                return tree;

        }

        class GeopTreeMouseListener extends MouseAdapter{

                public void mousePressed(MouseEvent e){

                        JTree tree = (JTree) e.getSource();

                        TreePath tp = tree.getPathForLocation(e.getX(),e.getY());

                        if (tp == null) return;

                        int clicks = e.getClickCount();

                        if (clicks == 2)

                        {

                                Object o = ((DefaultMutableTreeNode)tp.

                                                getLastPathComponent()).

                                                getUserObject();

                                if(!(o instanceof IGeoprocessPlugin))

                                        return;

                                IGeoprocessPlugin geoprocess = 

                                        (IGeoprocessPlugin) o;

                                if(geoprocess == null){

                                        String error = PluginServices.

                                                getText(this, "Error_seleccionar_gp");

                                        String errorDescription = PluginServices.

                                        getText(this, "Error_seleccionar_gp_desc");

                                        JOptionPane.showMessageDialog(GeoprocessManager.this,

                                                        errorDescription, error,

                                                        JOptionPane.ERROR_MESSAGE);

                                }

                                IGeoprocessPanel panel = 

                                        geoprocess.getGeoprocessPanel();

                        GeoprocessPaneContainer container = new 

                                        GeoprocessPaneContainer((JPanel)panel);

                        IGeoprocessController controller =

                                geoprocess.getGpController();

                        controller.setView(panel);

                        container.setCommand(controller);

                        container.validate();

                        container.repaint();

                        PluginServices.getMDIManager().addWindow(container);

                        }//if

                }

        }

        private JScrollPane getHtmlPane(){

                if(scrollHtml == null){

                        scrollHtml = new JScrollPane();

                        htmlPane = new JEditorPane();

                htmlPane.setEditable(false);

                htmlPane.setEditorKit(new HTMLEditorKit());

                scrollHtml.setViewportView(htmlPane);

                }

                return scrollHtml;

        }

        private JPanel getJPanelButtons() {

                if (jPanelButtons == null) {

                        jPanelButtons = new JPanel(new BorderLayout());

                        JPanel jPanelAux = new JPanel();

                        JLabel l = new JLabel();

                        l.setPreferredSize(new Dimension(40, 20));

                        jPanelButtons.add(new JSeparator(JSeparator.HORIZONTAL), BorderLayout.NORTH);

                        jPanelAux.add(getJButtonOpenGeop(), BorderLayout.WEST);

                        jPanelAux.add(l, BorderLayout.CENTER);

                        jPanelAux.add(getJButtonClose(), BorderLayout.EAST);

                        jPanelButtons.add(jPanelAux);

                }

                return jPanelButtons;

        }

        public void openGeoprocessPanel(){

                IGeoprocessPlugin geoprocess = 

                        tree.getGeoprocess();

                if(geoprocess == null){

                        String error = PluginServices.

                                getText(this, "Error_seleccionar_gp");

                        String errorDescription = PluginServices.

                        getText(this, "Error_seleccionar_gp_desc");

                        JOptionPane.showMessageDialog(this, errorDescription, error,

                                        JOptionPane.ERROR_MESSAGE);

                        return;

                }

                IGeoprocessPanel panel = 

                        geoprocess.getGeoprocessPanel();

        GeoprocessPaneContainer container = new 

                        GeoprocessPaneContainer((JPanel)panel);

        IGeoprocessController controller =

                geoprocess.getGpController();

        controller.setView(panel);

        container.setCommand(controller);

        container.validate();

        container.repaint();

        PluginServices.getMDIManager().addWindow(container);

        }

        private JButton getJButtonOpenGeop() {

                if (openGeoprocess == null) {

                        openGeoprocess = new JButton();

                        openGeoprocess.setText(PluginServices.getText(this, "Abrir_Geoproceso"));

                        openGeoprocess.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                        openGeoprocessPanel();

                                }

                        });

                        //it will be disabled until user select a geoprocess

                        //in the tree

                        openGeoprocess.setEnabled(false);

                }

                return openGeoprocess;

        }

        private JButton getJButtonClose() {

                if (jButtonClose == null) {

                        jButtonClose = new JButton();

                        jButtonClose.setText(PluginServices.getText(this, "Cerrar"));

                        jButtonClose.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                                PluginServices.

                                                getMDIManager().

                                                        closeWindow(GeoprocessManager.this);

                                }

                        });

                }

                return jButtonClose;

        }

        /**

         * processes tree selection events.

         */

        public void valueChanged(TreeSelectionEvent event) {

                DefaultMutableTreeNode selectedNode =

                        (DefaultMutableTreeNode) event.getPath().

                                                                getLastPathComponent();

                Object userObject = selectedNode.getUserObject();

                if(userObject instanceof IGeoprocessPlugin){

                        IGeoprocessPlugin metadata = 

                                (IGeoprocessPlugin)userObject;

                        try {

                                htmlPane.setPage(metadata.getHtmlDescription());

                        } catch (IOException e) {

                                htmlPane.setText("<p>Descripcion no disponible</p>");

                        }

                        getJButtonOpenGeop().setEnabled(true);

                }else{

                        GeoprocessTreeDirectory directory =

                                (GeoprocessTreeDirectory)userObject;

                        htmlPane.setText("<p>"+

                                        directory.getDescription()+

                                        "</p>");

                        getJButtonOpenGeop().setEnabled(false);

                }

        }

}  //  @jve:decl-index=0:visual-constraint="10,10"